SACRAMENTO, Calif. (AP) — Salvador Calzadillas isn't worried about catching the coronavirus when he's picking mandarin oranges in the trees in central California. But he said the mere act of getting to the groves each day puts him and his wife, also a farmworker, at risk, and there's nothing they can do to change that.

Farmworkers, after all, can't work from home.

Calzadillas and his wife are among half a dozen workers who crowd into a car or van to get to the groves a 40-minute drive away. There, they are huddled in a group to get daily instructions — without regard for social distancing, he...